Answer:
Part A)
Part B)
Part C)
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
Let
x -----> the number of workers
y ----> the number of pieces made
In this problem
The relation between the variables x and y represent a direct variation (proportional variation)
so
For x=16, y=40
Find the value of the constant of proportionality k
substitute the values
The linear equation is equal to
Part A) How many workers are needed to make 20 pieces
For y=20 pieces
substitute in the linear equation
Part B) How many workers are needed to make 25 pieces
For y=25 pieces
substitute in the linear equation
Part C) How many workers are needed to make 100 pieces
For y=100 pieces
substitute in the linear equation